The AssuredSAN 4004 solutions are built on the company's ninth-generation RAID stack, which delivers up to100,000 input/output operations per second (IOPS) from disk, sustained sequential read performance of up to6400 MB/second and writes of up to 5300 MB/second. The Dot Hill RAID Companion Processor (RCP) allows4004 solutions to deliver dramatic performance gains at very aggressive price points. AssuredSAN 4004solutions also integrate all the performance tuning and optimizations of the previous-generation AssuredSAN4000 models, which includes streaming performance optimization to handle randomized, sequential workloads.Dot Hill's latest firmware utilizes a proprietary Adaptive Read-ahead Algorithm that analyzes workloads andfine tunes options to optimize the performance of specific kinds of demanding workloads, delivering betterresponse times and meeting IT service level agreements